GRD028OS0
CIRCE 86-3
Siltstone
Cenozoic › Paleogene › Eocene › Middle Eocene
37.2
-
48.6
2
Ritter 154 › Cabinet 34 › Drawer A
-
Two small (~3x3.5x2.5 cm) cut very fine-grained red samples. Slightly metamorphosed? Original label: 12 August, 1968.
-
CIRCE
Indian Ocean
Original: 12 00.05, 62 18.0 E. Depth: -2350 to -1650.
Latitude: 12.000833°
Longitude: 62.3°
-2000.0 m a.s.l.
N/A
Slide 1: Deteriorated feldspar crystals and brown sphere in Fe-rich matrix
10.0
plane
Slide 1: Deteriorated feldspar crystals and brown sphere in Fe-rich matrix
10.0
crossed
Slide 1
scan
crossed
Slide 2
scan
crossed
GRD028OT0: Slide 1: Small, altered (?) feldspar crystals and greenish fibrous spheres in a very fine-grained brown and opaque matrix (Fe-oxides and staining) (C. Eichler)
GRD028OT1: Slide 2 is polished thin in the center of the slide (or becomes more feldspar-rich, thus transparent) (C. Eichler)
N/A
Fisher_GSABulletin_1971
Fisher, R.L., Sclater, J.G., McKenzie, D.P., 1971, Evolution of the Central Indian Ridge, Western Indian Ocean: Geological Society of America Bulletin, v. 82, no. 3, p. 553-562.